A buddy of mine owns a car audio shop in town (Steve Cook 5-6 time Db drag winner 177+Db). He has a demo car, '04 Civic SI, with only the Crossfire 6.5 component mids and tweeters for highs and it sounds absolutely incredible. I am going to get the same speakers and the 2-channel 300W amp that is feedling them. He also has 1 15'' sub in a fiberglass enclosure in the spare tire well. VERY nice setup. Good luck finding what you want, I am going all Crossfire.